Algebraic expressions

Question 1 of 10

2a + 3b = 5ab.

Question 2 of 10

Expand −2(3y − 5).

Question 3 of 10

4(p − 2) = 4p − 8.

Question 4 of 10

If x = −1, find the value of x² + 6.

Question 5 of 10

If x = −1, find the value of x² + 4.

Question 6 of 10

The length of a rectangle is (x + 5) cm and its width is (x + 5) cm. (a) Write an expression for its perimeter in simplest form. (b) Find the perimeter when x = 4. (c) Write an expression for its area when x = 4.

Question 7 of 10

Simplify 4(x + 5) + 2(x + 8). Write the answer in the form ax + b. Give b only: b = ___

Question 8 of 10

If x = 1, find the value of 5x + 6.

Question 9 of 10

a × a = 2a.

Question 10 of 10

If x = −2, find the value of x² + 5.